Is Sirius the brightest star in the night sky?

Sirius is the first star of Canis Canis, and it is named Alpha Canis according to the nomenclature of Bayeux. Sirius belongs to Su Jing in the constellation of China 28. So, let's take a look at the brightest star in the night sky with Bian Xiao-is Sirius a star? If you want to know more, please continue reading!

May be interested in the naming of "Halley's Comet"

Sirius is the brightest star in the night sky and the first-class star of Canis Canis. According to the nomenclature of Bayeux, it is named Alpha Canis. Sirius belongs to Su Jing in the constellation of China 28. Sirius, Nanhesan and Betelgeuse, for people living in the northern hemisphere, constitute the three vertices of the winter triangle.

Although far darker than Venus, Jupiter and other planets, it is the brightest star in the night sky, and winter is the best observation time. It is also a binary star in Canine constellation, including a white main sequence star with spectral type A 1V and a dark white dwarf companion star Sirius B with spectral type DA2, with apparent magnitude of-1.47 and absolute magnitude of+1.43, which is about 8.6 light years away from the solar system.

Try to make Sirius easy to see only in winter or early spring. There are several ways to find Sirius:

Samsung Orion is very easy to find, and Samsung closely arranged between two bright stars should also be able to see it. Looking southeast along Samsung, a very conspicuous star is Sirius.

Walking along the hunter's belt to the southeast, you can see an unusually bright star flashing blue and white. This is Sirius, the brightest star in the night sky, with an apparent magnitude of minus 1.5. Sirius is the alpha star of Canis Canis, which forms the outline of a dog with other brighter stars in Canis Canis. Sirius is in the dog's mouth.

The method of Winter Triangle is not so intuitive. To the east of Betelgeuse, there is a bright Nanhesan, which is the bright star in the upper left corner of Orion. If the connection between Nanhesan and Betelgeuse is south of perpendicular bisector, you will find him. Betelgeuse, Sirius and Nanhesan form the famous "Winter Triangle".

Both of the above methods are commonly used. In fact, the easiest way to find Sirius is to look at the southern sky around 22: 00 in the evening before and after the Spring Festival. The height angle of the brightest star is about 40 degrees, which star is the brightest under the premise of excluding planets. The orbits of planets in the night sky are generally similar to those of the moon, and Sirius is lower.

In China, Sirius's trajectory is always in the south of the world. The farther north, the lower Sirius's altitude angle.

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